Home / 380,618.46-570,748.89-220,739.85

Finding the Fourth Proportional to 380,618.46, 570,748.89 and 220,739.85

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Solution

The fourth proportional to 380,618.46, 570,748.89 and 220,739.85 is: 331,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,618.46 : 570,748.89 = 220,739.85 : x
  2. Step 2: Convert to fraction form
    380,618.46/570,748.89 = 220,739.85/x
  3. Step 3: Cross multiply
    380,618.46x = 570,748.89 × 220,739.85
  4. Step 4: Simplify right side
    380,618.46x = 125,987,024,366.27
  5. Step 5: Solve for x
    x = 125,987,024,366.27/380,618.46
  6. Step 6: Final answer
    x = 331,006.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.